diff --git a/.github/workflows/docker-build.yml b/.github/workflows/docker-build.yml
index 80c5bf9..aa8a9f2 100644
--- a/.github/workflows/docker-build.yml
+++ b/.github/workflows/docker-build.yml
@@ -1,7 +1,9 @@
 name: update docker image
 
 on:
-  workflow_dispatch:
+  push:
+    tags:
+      - 'v*.*.*'
 
 jobs:
   build: